add fishlim plugin

21 files changed, 1265 insertions, 0 deletions

diff --git a/build/release-x64.bat b/build/release-x64.bat
index 2f911897..33bd235f 100644
--- a/build/release-x64.bat
+++ b/build/release-x64.bat
@@ -48,6 +48,7 @@ copy %DEPS_ROOT%\bin\libenchant.dll %XCHAT_DEST%
 xcopy /q /s /i %DEPS_ROOT%\lib\enchant\libenchant_myspell.dll %XCHAT_DEST%\lib\enchant\
 xcopy /q /s /i ..\plugins\checksum\xcchecksum.dll %XCHAT_DEST%\plugins\
 copy ..\plugins\doat\xcdoat.dll %XCHAT_DEST%\plugins
+copy ..\plugins\fishlim\xcfishlim.dll %XCHAT_DEST%\plugins
 copy ..\plugins\lua\xclua.dll %XCHAT_DEST%\plugins
 ::copy ..\plugins\gtkpref\xcgtkpref.dll %XCHAT_DEST%\plugins
 copy ..\plugins\mpcinfo\xcmpcinfo.dll %XCHAT_DEST%\plugins
diff --git a/build/release-x86.bat b/build/release-x86.bat
index ebd629f7..9bc21126 100644
--- a/build/release-x86.bat
+++ b/build/release-x86.bat
@@ -48,6 +48,7 @@ copy %DEPS_ROOT%\bin\libenchant.dll %XCHAT_DEST%
 xcopy /q /s /i %DEPS_ROOT%\lib\enchant\libenchant_myspell.dll %XCHAT_DEST%\lib\enchant\
 xcopy /q /s /i ..\plugins\checksum\xcchecksum.dll %XCHAT_DEST%\plugins\
 copy ..\plugins\doat\xcdoat.dll %XCHAT_DEST%\plugins
+copy ..\plugins\fishlim\xcfishlim.dll %XCHAT_DEST%\plugins
 copy ..\plugins\lua\xclua.dll %XCHAT_DEST%\plugins
 ::copy ..\plugins\gtkpref\xcgtkpref.dll %XCHAT_DEST%\plugins
 copy ..\plugins\mpcinfo\xcmpcinfo.dll %XCHAT_DEST%\plugins
diff --git a/build/xchat-wdk-x64.skel.iss b/build/xchat-wdk-x64.skel.iss
index ab03ad5a..fd9f802f 100644
--- a/build/xchat-wdk-x64.skel.iss
+++ b/build/xchat-wdk-x64.skel.iss
@@ -35,6 +35,7 @@ Name: "translations"; Description: "Translations"; Types: normal full custom; Fl
 Name: "plugins"; Description: "Plugins"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\checksum"; Description: "Checksum"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\doat"; Description: "Do At"; Types: full custom; Flags: disablenouninstallwarning

+Name: "plugins\fishlim"; Description: "FiSHLiM"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\mpcinfo"; Description: "mpcInfo"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\upd"; Description: "Update Checker"; Types: normal full custom; Flags: disablenouninstallwarning

 Name: "plugins\winamp"; Description: "Winamp"; Types: full custom; Flags: disablenouninstallwarning

@@ -124,6 +125,7 @@ Source: "lib\gtk-2.0\modules\libgail.dll"; DestDir: "{app}\lib\gtk-2.0\modules";
 

 Source: "plugins\xcchecksum.dll"; DestDir: "{app}\plugins"; Components: plugins\checksum

 Source: "plugins\xcdoat.dll"; DestDir: "{app}\plugins"; Components: plugins\doat

+Source: "plugins\xcfishlim.dll"; DestDir: "{app}\plugins"; Components: plugins\fishlim

 Source: "plugins\xcmpcinfo.dll"; DestDir: "{app}\plugins"; Components: plugins\mpcinfo

 Source: "plugins\xcupd.dll"; DestDir: "{app}\plugins"; Components: plugins\upd

 Source: "plugins\xcwinamp.dll"; DestDir: "{app}\plugins"; Components: plugins\winamp

diff --git a/build/xchat-wdk-x86.skel.iss b/build/xchat-wdk-x86.skel.iss
index be5f7ea1..4a3b0f11 100644
--- a/build/xchat-wdk-x86.skel.iss
+++ b/build/xchat-wdk-x86.skel.iss
@@ -34,6 +34,7 @@ Name: "translations"; Description: "Translations"; Types: normal full custom; Fl
 Name: "plugins"; Description: "Plugins"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\checksum"; Description: "Checksum"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\doat"; Description: "Do At"; Types: full custom; Flags: disablenouninstallwarning

+Name: "plugins\fishlim"; Description: "FiSHLiM"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\mpcinfo"; Description: "mpcInfo"; Types: full custom; Flags: disablenouninstallwarning

 Name: "plugins\upd"; Description: "Update Checker"; Types: normal full custom; Flags: disablenouninstallwarning

 Name: "plugins\winamp"; Description: "Winamp"; Types: full custom; Flags: disablenouninstallwarning

@@ -123,6 +124,7 @@ Source: "lib\gtk-2.0\modules\libgail.dll"; DestDir: "{app}\lib\gtk-2.0\modules";
 

 Source: "plugins\xcchecksum.dll"; DestDir: "{app}\plugins"; Components: plugins\checksum

 Source: "plugins\xcdoat.dll"; DestDir: "{app}\plugins"; Components: plugins\doat

+Source: "plugins\xcfishlim.dll"; DestDir: "{app}\plugins"; Components: plugins\fishlim

 Source: "plugins\xcmpcinfo.dll"; DestDir: "{app}\plugins"; Components: plugins\mpcinfo

 Source: "plugins\xcupd.dll"; DestDir: "{app}\plugins"; Components: plugins\upd

 Source: "plugins\xcwinamp.dll"; DestDir: "{app}\plugins"; Components: plugins\winamp

diff --git a/plugins/fishlim/INSTALL b/plugins/fishlim/INSTALL
new file mode 100644
index 00000000..d0d61ff8
--- /dev/null
+++ b/plugins/fishlim/INSTALL
@@ -0,0 +1,16 @@
+
+Install dependencies (on Debian/Ubuntu):
+
+    sudo apt-get install  build-essential libglib2.0-dev libssl-dev
+
+
+Build the plugin with:
+
+    make
+
+
+Install with:
+
+    sudo make install
+
+
diff --git a/plugins/fishlim/LICENSE b/plugins/fishlim/LICENSE
new file mode 100644
index 00000000..427f2631
--- /dev/null
+++ b/plugins/fishlim/LICENSE
@@ -0,0 +1,21 @@
+
+Copyright (c) 2010-2011 Samuel Lidén Borell <samuel@slbdata.se>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
diff --git a/plugins/fishlim/Makefile b/plugins/fishlim/Makefile
new file mode 100644
index 00000000..7a5081e4
--- /dev/null
+++ b/plugins/fishlim/Makefile
@@ -0,0 +1,40 @@
+
+OURCFLAGS = -Wall -Wextra -Wno-unused-parameter -std=c99 -pedantic `pkg-config --cflags glib-2.0 libcrypto` -DG_DISABLE_DEPRECATED=1 -fPIC $(CFLAGS)
+#OURLINKFLAGS = `pkg-config --libs glib-2.0 libcrypto` -shared -fPIC -Wl,-z,defs $(CFLAGS) $(LDFLAGS)
+OURLINKFLAGS = `pkg-config --libs glib-2.0 libcrypto` $(CFLAGS) $(LDFLAGS)
+
+BASE_OBJECTS = irc.o fish.o keystore.o misc.o
+PLUGIN_OBJECTS = $(BASE_OBJECTS) xchat_plugin.o
+TEST_OBJECTS = $(BASE_OBJECTS) test.o
+
+all: fishlim.so test
+
+fish.o: fish.h keystore.h misc.h
+irc.o: irc.h
+keystore.o: keystore.h irc.h fish.h misc.h
+misc.o: misc.h
+test.o: fish.h
+xchat_plugin.o: fish.h irc.h keystore.h
+
+.c.o:
+	$(CC) $(OURCFLAGS) -c $< -o $@
+
+fishlim.so: $(PLUGIN_OBJECTS)
+	$(CC) -shared $(OURLINKFLAGS) $(PLUGIN_OBJECTS) -o $@
+
+test: $(TEST_OBJECTS)
+	$(CC) $(OURLINKFLAGS) $(TEST_OBJECTS) -o $@
+
+
+.PHONY: all clean distclean install uninstall
+clean:
+	-$(RM) -f $(PLUGIN_OBJECTS) $(TEST_OBJECTS) fishlim.so test
+distclean: clean
+
+install: fishlim.so
+	install -d $(DESTDIR)/usr/lib/xchat/plugins/
+	install -m 644 fishlim.so $(DESTDIR)/usr/lib/xchat/plugins/
+uninstall:
+	rm $(DESTDIR)/usr/lib/xchat/plugins/fishlim.so
+
+
diff --git a/plugins/fishlim/README b/plugins/fishlim/README
new file mode 100644
index 00000000..9c5cd5fc
--- /dev/null
+++ b/plugins/fishlim/README
@@ -0,0 +1,44 @@
+
+
+                                FiSHLiM
+
+                       http://fishlim.slbdata.se/
+
+
+FiSHLiM is an XChat plugin for FiSH IRC encryption. It's my attempt at making
+a simple, lightweight and secure plugin for this encryption protocol.
+
+For installation instructions, see the INSTALL file.
+
+
+Features
+--------
+
+Working:
+  * Sending/receiving messages
+  * Topic decryption
+  * Using unecrypted keys / keys without a password from blow.ini
+  * Pure protocol-level filtering (works with highlighting, nick coloring etc)
+  * Partially encrypted messages (i.e. prefixed with nickname by a bouncer)
+
+Not working:
+  * Key exchange
+  * Password-protected key storage
+  * Topic encryption
+  * Remote exploitation (hopefully!)
+
+
+Commands
+--------
+
+/setkey  [nick or #channel]  password
+
+    Sets the encryption key for the nick or channel to password. The keys
+    are stored in the configuration file in ~/.xchat2/blow.ini
+
+
+/delkey  nick-or-#channel
+
+    Deletes the given nick or channel from the configuration file.
+
+
diff --git a/plugins/fishlim/bool.h b/plugins/fishlim/bool.h
new file mode 100644
index 00000000..2c8ddde4
--- /dev/null
+++ b/plugins/fishlim/bool.h
@@ -0,0 +1,5 @@
+/* stdbool.h replacement for MSVC */
+#define false 0
+#define true 1
+#define bool _Bool
+typedef int _Bool;
diff --git a/plugins/fishlim/fish.c b/plugins/fishlim/fish.c
new file mode 100644
index 00000000..0d92ecc9
--- /dev/null
+++ b/plugins/fishlim/fish.c
@@ -0,0 +1,192 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <openssl/blowfish.h>
+
+#include "keystore.h"
+#include "fish.h"
+
+#define IB 64
+static const char fish_base64[64] = "./0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+static const signed char fish_unbase64[256] = {
+    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB,IB,IB,
+    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB,IB,IB,
+//      !  "  #  $  %  &  '  (    )  *  +  ,  -  .  /
+    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB, 0, 1,
+//   0  1  2  3  4  5  6  7    8  9  :  ;  <  =  >  ?
+     2, 3, 4, 5, 6, 7, 8, 9,  10,11,IB,IB,IB,IB,IB,IB,
+//   @  A  B  C  D  E  F  G    H  I  J  K  L  M  N  O
+    IB,38,39,40,41,42,43,44,  45,46,47,48,49,50,51,52,
+//   P  Q  R  S  T  U  V  W    X  Y  Z  [  \  ]  ^  _
+    53,54,55,56,57,58,59,60,  61,62,63,IB,IB,IB,IB,IB,
+//   `  a  b  c  d  e  f  g    h  i  j  k  l  m  n  o
+    IB,12,13,14,15,16,17,18,  19,20,21,22,23,24,25,26,
+//   p  q  r  s  t  u  v  w    x  y  z  {  |  }  ~  <del>
+    27,28,29,30,31,32,33,34,  35,36,37,IB,IB,IB,IB,IB,
+};
+
+#define GET_BYTES(dest, source) do { \
+    *((dest)++) = ((source) >> 24) & 0xFF; \
+    *((dest)++) = ((source) >> 16) & 0xFF; \
+    *((dest)++) = ((source) >> 8) & 0xFF; \
+    *((dest)++) = (source) & 0xFF; \
+} while (0);
+
+
+char *fish_encrypt(const char *key, size_t keylen, const char *message) {
+    BF_KEY bfkey;
+	size_t messagelen;
+	size_t i;
+	int j;
+	char *encrypted;
+	char *end;
+	unsigned char bit;
+	unsigned char word;
+	unsigned char d;
+    BF_set_key(&bfkey, keylen, (const unsigned char*)key);
+    
+    messagelen = strlen(message);
+    if (messagelen == 0) return NULL;
+    encrypted = malloc(((messagelen-1)/8)*12 + 12 + 1); // each 8-byte block becomes 12 bytes
+    end = encrypted;
+    if (!encrypted) return NULL;
+     
+    while (*message) {
+        // Read 8 bytes (a Blowfish block)
+        BF_LONG binary[2] = { 0, 0 };
+        unsigned char c;
+        for (i = 0; i < 8; i++) {
+            c = message[i];
+            binary[i >> 2] |= c << 8*(3 - (i&3));
+            if (c == '\0') break;
+        }
+        message += 8;
+        
+        // Encrypt block
+        BF_encrypt(binary, &bfkey);
+        
+        // Emit FiSH-BASE64
+        bit = 0;
+        word = 1;
+        for (j = 0; j < 12; j++) {
+            d = fish_base64[(binary[word] >> bit) & 63];
+            *(end++) = d;
+            bit += 6;
+            if (j == 5) {
+                bit = 0;
+                word = 0;
+            }
+        }
+        
+        // Stop if a null terminator was found
+        if (c == '\0') break;
+    }
+    *end = '\0';
+    return encrypted;
+}
+
+
+char *fish_decrypt(const char *key, size_t keylen, const char *data) {
+    BF_KEY bfkey;
+	size_t i;
+	char *decrypted;
+	char *end;
+	unsigned char bit;
+	unsigned char word;
+	unsigned char d;
+    BF_set_key(&bfkey, keylen, (const unsigned char*)key);
+    
+    decrypted = malloc(strlen(data)+1);
+    end = decrypted;
+    if (!decrypted) return NULL;
+    
+    while (*data) {
+        // Convert from FiSH-BASE64
+        BF_LONG binary[2] = { 0, 0 };
+        bit = 0;
+        word = 1;
+        for (i = 0; i < 12; i++) {
+            d = fish_unbase64[(const unsigned char)*(data++)];
+            if (d == IB) goto decrypt_end;
+            binary[word] |= d << bit;
+            bit += 6;
+            if (i == 5) {
+                bit = 0;
+                word = 0;
+            }
+        }
+        
+        // Decrypt block
+        BF_decrypt(binary, &bfkey);
+        
+        // Copy to buffer
+        GET_BYTES(end, binary[0]);
+        GET_BYTES(end, binary[1]);
+    }
+    
+  decrypt_end:
+    *end = '\0';
+    return decrypted;
+}
+
+/**
+ * Encrypts a message (see fish_decrypt). The key is searched for in the
+ * key store.
+ */
+char *fish_encrypt_for_nick(const char *nick, const char *data) {
+    char *key;
+    char *encrypted;
+
+    // Look for key
+    key = keystore_get_key(nick);
+    if (!key) return NULL;
+    
+    // Encrypt
+    encrypted = fish_encrypt(key, strlen(key), data);
+    
+    free(key);
+    return encrypted;
+}
+
+/**
+ * Decrypts a message (see fish_decrypt). The key is searched for in the
+ * key store.
+ */
+char *fish_decrypt_from_nick(const char *nick, const char *data) {
+    char *key;
+    char *decrypted;
+    // Look for key
+    key = keystore_get_key(nick);
+    if (!key) return NULL;
+    
+    // Decrypt
+    decrypted = fish_decrypt(key, strlen(key), data);
+    
+    free(key);
+    return decrypted;
+}
+
+
diff --git a/plugins/fishlim/fish.h b/plugins/fishlim/fish.h
new file mode 100644
index 00000000..d4057a7b
--- /dev/null
+++ b/plugins/fishlim/fish.h
@@ -0,0 +1,42 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#ifndef FISH_H
+#define FISH_H
+
+#ifdef _MSC_VER
+#include "bool.h"
+#else
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+
+char *fish_encrypt(const char *key, size_t keylen, const char *message);
+char *fish_decrypt(const char *key, size_t keylen, const char *data);
+char *fish_encrypt_for_nick(const char *nick, const char *data);
+char *fish_decrypt_from_nick(const char *nick, const char *data);
+
+#endif
+
+
diff --git a/plugins/fishlim/irc.c b/plugins/fishlim/irc.c
new file mode 100644
index 00000000..a96c4c91
--- /dev/null
+++ b/plugins/fishlim/irc.c
@@ -0,0 +1,112 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include "irc.h"
+
+/**
+ * Parses an IRC message. The words array should contain the message splitted
+ * at spaces. The prefix and command is extracted from the message, and
+ * parameters_offset is set to the index of the first parameter.
+ */
+bool irc_parse_message(const char *words[],
+                       const char **prefix, const char **command,
+                       size_t *parameters_offset) {
+    size_t w = 1;
+    if (prefix) *prefix = NULL;
+    if (command) *command = NULL;
+    
+    // See if the message starts with a prefix (sender user)
+    if (words[w][0] == ':') {
+        if (prefix) *prefix = &words[w][1];
+        w++;
+    }
+    
+    // Check command
+    if (words[w][0] == '\0') return false;
+    if (command) *command = words[w];
+    w++;
+    
+    *parameters_offset = w;
+    return true;
+}
+
+
+/**
+ * Finds the nick part of a "IRC prefix", which can have any
+ * of the following forms:
+ *
+ *     nick
+ *     nick@host
+ *     nick!ident
+ *     nick!ident@host
+ */
+char *irc_prefix_get_nick(const char *prefix) {
+    const char *end;
+    char *nick;
+    size_t length;
+    
+    if (!prefix) return NULL;
+    
+    // Find end of nick
+    end = prefix;
+    while (*end != '\0' && *end != '!' && *end != '@') end++;
+    
+    // Allocate string
+    length = end - prefix;
+    nick = malloc(length+1);
+    if (!nick) return NULL;
+    
+    // Copy to string
+    memcpy(nick, prefix, length);
+    nick[length] = '\0';
+    return nick;
+}
+
+
+/**
+ * Compares two nick names. Return 0 if equal. Otherwise the return value is
+ * less than zero if a is less than b or greater than zero if a is greater
+ * than b.
+ */
+int irc_nick_cmp(const char *a, const char *b) {
+    char ac;
+    char bc;
+    char diff;
+    for (;;) {
+        ac = *(a++);
+        bc = *(b++);
+        
+        // Change into IRC uppercase (see RFC 2812 section 2.2)
+        if (ac >= 'a' && ac <= '~') ac &= ~0x20;
+        if (bc >= 'a' && bc <= '~') bc &= ~0x20;
+        
+        diff = ac - bc;
+        if (diff) return diff;
+        if (!ac) return 0;
+    }
+}
+
+
diff --git a/plugins/fishlim/irc.h b/plugins/fishlim/irc.h
new file mode 100644
index 00000000..0c1e7463
--- /dev/null
+++ b/plugins/fishlim/irc.h
@@ -0,0 +1,43 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#ifndef IRC_H
+#define IRC_H
+
+#ifdef _MSC_VER
+#include "bool.h"
+#else
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+
+bool irc_parse_message(const char *words[],
+                       const char **prefix, const char **command,
+                       size_t *parameters_offset);
+char *irc_prefix_get_nick(const char *prefix);
+int irc_nick_cmp(const char *a, const char *b);
+
+#endif
+
+
diff --git a/plugins/fishlim/keystore.c b/plugins/fishlim/keystore.c
new file mode 100644
index 00000000..6eccccaf
--- /dev/null
+++ b/plugins/fishlim/keystore.c
@@ -0,0 +1,217 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <glib.h>
+#include <stdlib.h>
+#include <string.h>
+#include "irc.h"
+#include "fish.h"
+#include "misc.h"
+#include "keystore.h"
+
+
+static char *keystore_password = NULL;
+
+
+/**
+ * Returns the path to the key store file.
+ */
+static gchar *get_config_filename() {
+    // TODO use xchat_get_info(ph, "xchatdirfs")
+    const gchar *homedir = g_get_home_dir();
+    return g_build_filename(homedir, ".xchat2", "blow.ini", NULL);
+}
+
+/**
+ * Opens the key store file: ~/.xchat2/blow.ini
+ */
+static GKeyFile *getConfigFile() {
+    gchar *filename = get_config_filename();
+    
+    GKeyFile *keyfile = g_key_file_new();
+    g_key_file_load_from_file(keyfile, filename,
+                              G_KEY_FILE_KEEP_COMMENTS |
+                              G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
+    
+    g_free(filename);
+    return keyfile;
+}
+
+
+/**
+ * Returns the key store password, or the default.
+ */
+static const char *get_keystore_password() {
+    return (keystore_password != NULL ?
+        keystore_password :
+        // Silly default value...
+        "blowinikey");
+}
+
+
+/**
+ * Gets a value for a nick/channel from blow.ini. Unlike
+ * g_key_file_get_string, this function is case insensitive.
+ */
+static gchar *get_nick_value(GKeyFile *keyfile, const char *nick, const char *item) {
+    gchar **group;
+    gchar **groups = g_key_file_get_groups(keyfile, NULL);
+    gchar *result = NULL;
+    
+    for (group = groups; *group != NULL; group++) {
+        if (!irc_nick_cmp(*group, nick)) {
+            result = g_key_file_get_string(keyfile, *group, item, NULL);
+            break;
+        }
+    }
+    
+    g_strfreev(groups);
+    return result;
+}
+
+
+/**
+ * Extracts a key from the key store file.
+ */
+char *keystore_get_key(const char *nick) {
+    // Get the key
+    GKeyFile *keyfile = getConfigFile();
+    gchar *value = get_nick_value(keyfile, nick, "key");
+    g_key_file_free(keyfile);
+    if (!value) return NULL;
+    
+    if (strncmp(value, "+OK ", 4) != 0) {
+        // Key is stored in plaintext
+        return import_glib_string(value);
+    } else {
+        // Key is encrypted
+        const char *encrypted = value+4;
+        const char *password = get_keystore_password();
+        char *decrypted = fish_decrypt(password, strlen(password), encrypted);
+        g_free(value);
+        return decrypted;
+    }
+}
+
+/**
+ * Deletes a nick and the associated key in the key store file.
+ */
+static bool delete_nick(GKeyFile *keyfile, const char *nick) {
+    gchar **group;
+    gchar **groups = g_key_file_get_groups(keyfile, NULL);
+    bool ok = false;
+    
+    for (group = groups; *group != NULL; group++) {
+        if (!irc_nick_cmp(*group, nick)) {
+            ok = g_key_file_remove_group(keyfile, *group, NULL);
+            break;
+        }
+    }
+    
+    g_strfreev(groups);
+    return ok;
+}
+
+/**
+ * Writes the key store file to disk.
+ */
+static bool save_keystore(GKeyFile *keyfile) {
+    char *filename;
+    bool ok;
+    // Serialize
+    gsize file_length;
+    gchar *file_data = g_key_file_to_data(keyfile, &file_length, NULL);
+    if (!file_data) return false;
+    
+    // Write to file
+    filename = get_config_filename();
+    ok = g_file_set_contents(filename, file_data, file_length, NULL);
+    g_free(filename);
+    g_free(file_data);
+    return ok;
+}
+
+/**
+ * Sets a key in the key store file.
+ */
+bool keystore_store_key(const char *nick, const char *key) {
+    const char *password;
+    char *encrypted;
+    char *wrapped;
+    bool ok = false;
+    GKeyFile *keyfile = getConfigFile();
+    
+    // Remove old key
+    delete_nick(keyfile, nick);
+    
+    // Add new key
+    password = get_keystore_password();
+    if (password) {
+        // Encrypt the password
+        encrypted = fish_encrypt(password, strlen(password), key);
+        if (!encrypted) goto end;
+        
+        // Prepend "OK+ "
+        wrapped = g_strconcat("OK+ ", encrypted, NULL);
+        g_free(encrypted);
+        
+        // Store encrypted in file
+        g_key_file_set_string(keyfile, nick, "key", wrapped);
+        free(wrapped);
+    } else {
+        // Store unencrypted in file
+        g_key_file_set_string(keyfile, nick, "key", key);
+    }
+    
+    // Save key store file
+    ok = save_keystore(keyfile);
+    
+  end:
+    g_key_file_free(keyfile);
+    return ok;
+}
+
+/**
+ * Deletes a nick from the key store.
+ */
+bool keystore_delete_nick(const char *nick) {
+    GKeyFile *keyfile = getConfigFile();
+    
+    // Delete entry
+    bool ok = delete_nick(keyfile, nick);
+    
+    // Save
+    if (ok) save_keystore(keyfile);
+    
+    g_key_file_free(keyfile);
+    return ok;
+}
+
+
+void keystore_secure_free(void *ptr, size_t size) {
+    secure_erase(ptr, size);
+    free(ptr);
+}
+
+
diff --git a/plugins/fishlim/keystore.h b/plugins/fishlim/keystore.h
new file mode 100644
index 00000000..e6c527c7
--- /dev/null
+++ b/plugins/fishlim/keystore.h
@@ -0,0 +1,42 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#ifndef KEYSTORE_H
+#define KEYSTORE_H
+
+#ifdef _MSC_VER
+#include "bool.h"
+#else
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+
+char *keystore_get_key(const char *nick);
+int keystore_store_key(const char *nick, const char *key);
+bool keystore_delete_nick(const char *nick);
+
+void keystore_secure_free(void *ptr, size_t size);
+
+#endif
+
diff --git a/plugins/fishlim/makefile.mak b/plugins/fishlim/makefile.mak
new file mode 100644
index 00000000..decf9bb4
--- /dev/null
+++ b/plugins/fishlim/makefile.mak
@@ -0,0 +1,30 @@
+include "..\..\src\makeinc.mak"

+

+TARGET = xcfishlim.dll

+

+CFLAGS = $(CFLAGS)

+

+FISHLIM_OBJECTS = \

+fish.obj \

+irc.obj \

+keystore.obj \

+misc.obj \

+xchat_plugin.obj

+

+all: $(FISHLIM_OBJECTS) fishlim.def

+	link $(LDFLAGS) $(LIBS) /dll /out:xcfishlim.dll /def:fishlim.def $(FISHLIM_OBJECTS)

+

+fishlim.def:

+	echo EXPORTS > fishlim.def

+	echo xchat_plugin_init >> fishlim.def

+	echo xchat_plugin_deinit >> fishlim.def

+	echo xchat_plugin_get_info >> fishlim.def

+

+.c.obj:

+	$(CC) $(CFLAGS) $(GLIB) /I.. /c $<

+

+clean:

+	del *.obj

+	del *.dll

+	del *.exp

+	del *.lib

diff --git a/plugins/fishlim/misc.c b/plugins/fishlim/misc.c
new file mode 100644
index 00000000..32fe3595
--- /dev/null
+++ b/plugins/fishlim/misc.c
@@ -0,0 +1,54 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <glib.h>
+#include <stdlib.h>
+#include <string.h>
+#include "misc.h"
+
+
+void secure_erase(void *ptr, size_t size) {
+    // "volatile" prevents this code from being optimized away
+    volatile char* volptr = ptr;
+    while (size--) *volptr++ = 0;
+}
+
+/**
+ * Re-allocates a string with the native allocator.
+ */
+char *import_glib_string(gchar *gstr) {
+    size_t size;
+    char *native;
+    if (g_mem_is_system_malloc()) return gstr;
+    
+    size = strlen(gstr)+1;
+    native = malloc(size);
+    memcpy(native, gstr, size);
+    
+    secure_erase(gstr, size);
+    g_free(gstr);
+    return native;
+}
+
+
diff --git a/plugins/fishlim/misc.h b/plugins/fishlim/misc.h
new file mode 100644
index 00000000..0adc928c
--- /dev/null
+++ b/plugins/fishlim/misc.h
@@ -0,0 +1,36 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#ifndef MISC_H
+#define MISC_H
+
+void secure_erase(void *ptr, size_t size);
+
+#ifdef __G_LIB_H__
+char *import_glib_string(gchar *gstr);
+#endif
+
+#endif
+
+
diff --git a/plugins/fishlim/test.c b/plugins/fishlim/test.c
new file mode 100644
index 00000000..2032496a
--- /dev/null
+++ b/plugins/fishlim/test.c
@@ -0,0 +1,83 @@
+/*
+
+  Copyright (c) 2010 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "fish.h"
+
+static int decrypt(int nick_count, char *nicks[]) {
+    char encrypted[8192];
+    while (fgets(encrypted, sizeof(encrypted), stdin)) {
+        char *msg;
+        for (int i = 0; i < nick_count; i++) {
+            msg = fish_decrypt_from_nick(nicks[i], encrypted);
+            if (msg) goto success;
+        }
+        fprintf(stderr, "None of the recipients were found in the key store!\n");
+        return 1;
+      success:
+        fprintf(stderr, "Decrypted text >>>%s<<<\n", msg);
+    }
+    return 0;
+}
+
+static int encrypt(int nick_count, char *nicks[]) {
+    char message[8192];
+    while (fgets(message, sizeof(message), stdin)) {
+        // Remove newline character
+        char *newline = strchr(message, '\n');
+        if (newline) *newline = '\0';
+        
+        bool error = false;
+        for (int i = 0; i < nick_count; i++) {
+            char *encrypted = fish_encrypt_for_nick(nicks[i], message);
+            if (encrypted) {
+                fprintf(stderr, "Encrypted [%s]:  >>>%s<<<\n", nicks[i], encrypted);
+            } else {
+                error = true;
+            }
+        }
+        
+        if (error) {
+            fprintf(stderr, "Some of the recipients were't found in the key store!\n");
+            return 1;
+        }
+    }
+    return 0;
+}
+
+int main(int argc, char *argv[]) {
+    if (argc < 2) {
+        fprintf(stderr, "usage: %s [-e] nick...\n", argv[0]);
+        return 2;
+    }
+    
+    if (strcmp(argv[1], "-e") == 0) {
+        return encrypt(argc-2, &argv[2]);
+    } else {
+        return decrypt(argc-1, &argv[1]);
+    }
+}
+
+
diff --git a/plugins/fishlim/xchat_plugin.c b/plugins/fishlim/xchat_plugin.c
new file mode 100644
index 00000000..dc67fddb
--- /dev/null
+++ b/plugins/fishlim/xchat_plugin.c
@@ -0,0 +1,278 @@
+/*
+
+  Copyright (c) 2010-2011 Samuel Lidén Borell <samuel@slbdata.se>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+// #pragma GCC visibility push(default)
+#include "xchat-plugin.h"
+#define XCHAT_MAX_WORDS 32
+// #pragma GCC visibility pop
+
+//#define EXPORT __attribute((visibility("default")))
+//#define EXPORT
+
+#include "fish.h"
+#include "keystore.h"
+#include "irc.h"
+
+static const char plugin_name[] = "FiSHLiM";
+static const char plugin_desc[] = "Encryption plugin for the FiSH protocol. Less is More!";
+static const char plugin_version[] = "0.0.13";
+
+static const char usage_setkey[] = "Usage: SETKEY [<nick or #channel>] <password>, sets the key for a channel or nick";
+static const char usage_delkey[] = "Usage: DELKEY <nick or #channel>, deletes the key for a channel or nick";
+
+static xchat_plugin *ph;
+
+
+/**
+ * Appends data to a string. Returns true if there was sufficient memory.
+ * Frees *s and returns false if an error occurs.
+ */
+static bool append(char **s, size_t *length, const char *data) {
+    size_t datalen = strlen(data);
+    char *extended = realloc(*s, *length + datalen + 1);
+    if (!extended) {
+        free(*s);
+        return false;
+    }
+    memcpy(extended + *length, data, datalen + 1);
+    *s = extended;
+    *length += datalen;
+    return true;
+}
+
+
+/*static int handle_debug(char *word[], char *word_eol[], void *userdata) {
+    xchat_printf(ph, "debug incoming: ");
+    for (size_t i = 1; word[i] != NULL && word[i][0] != '\0'; i++) {
+        xchat_printf(ph, ">%s< ", word[i]);
+    }
+    xchat_printf(ph, "\n");
+    return XCHAT_EAT_NONE;
+}*/
+
+/**
+ * Called when a message is to be sent.
+ */
+static int handle_outgoing(char *word[], char *word_eol[], void *userdata) {
+    const char *own_nick;
+    // Encrypt the message if possible
+    const char *channel = xchat_get_info(ph, "channel");
+    char *encrypted = fish_encrypt_for_nick(channel, word_eol[1]);
+    if (!encrypted) return XCHAT_EAT_NONE;
+    
+    // Display message
+    own_nick = xchat_get_info(ph, "nick");
+    xchat_emit_print(ph, "Your Message", own_nick, word_eol[1], NULL);
+    
+    // Send message
+    xchat_commandf(ph, "PRIVMSG %s :+OK %s", channel, encrypted);
+    
+    free(encrypted);
+    return XCHAT_EAT_XCHAT;
+}
+
+/**
+ * Called when a channel message or private message is received.
+ */
+static int handle_incoming(char *word[], char *word_eol[], void *userdata) {
+    const char *prefix;
+    const char *command;
+    const char *recipient;
+    const char *encrypted;
+    const char *peice;
+	char *sender_nick;
+    char *decrypted;
+    char *message;
+    size_t w;
+    size_t ew;
+    size_t uw;
+    size_t length;
+
+    if (!irc_parse_message((const char **)word, &prefix, &command, &w))
+        return XCHAT_EAT_NONE;
+    
+    // Topic (command 332) has an extra parameter
+    if (!strcmp(command, "332")) w++;
+    
+    // Look for encrypted data
+    ew;
+    for (ew = w+1; ew < XCHAT_MAX_WORDS-1; ew++) {
+        const char *s = (ew == w+1 ? word[ew]+1 : word[ew]);
+        if (strcmp(s, "+OK") == 0) goto has_encrypted_data;
+    }
+    return XCHAT_EAT_NONE;
+  has_encrypted_data: ;
+    // Extract sender nick and recipient nick/channel
+    sender_nick = irc_prefix_get_nick(prefix);
+    recipient = word[w];
+    
+    // Try to decrypt with these (the keys are searched for in the key store)
+    encrypted = word[ew+1];
+    decrypted = fish_decrypt_from_nick(recipient, encrypted);
+    if (!decrypted) decrypted = fish_decrypt_from_nick(sender_nick, encrypted);
+    
+    // Check for error
+    if (!decrypted) goto decrypt_error;
+    
+    // Build unecrypted message
+    message = NULL;
+    length = 0;
+    if (!append(&message, &length, "RECV")) goto decrypt_error;
+    
+    for (uw = 1; uw < XCHAT_MAX_WORDS; uw++) {
+        if (word[uw][0] != '\0' && !append(&message, &length, " ")) goto decrypt_error;
+        
+        if (uw == ew) {
+            // Add the encrypted data
+            peice = decrypted;
+            uw++; // Skip "OK+"
+        } else {
+            // Add unencrypted data (for example, a prefix from a bouncer or bot)
+            peice = (uw == w+1 ? word[uw]+1 : word[uw]);
+        }
+        
+        if (!append(&message, &length, peice)) goto decrypt_error;
+    }
+    free(decrypted);
+    
+    // Simulate unencrypted message
+    //xchat_printf(ph, "simulating: %s\n", message);
+    xchat_command(ph, message);
+    
+    free(message);
+    free(sender_nick);
+    return XCHAT_EAT_XCHAT;
+  
+  decrypt_error:
+    free(decrypted);
+    free(sender_nick);
+    return XCHAT_EAT_NONE;
+}
+
+/**
+ * Command handler for /setkey
+ */
+static int handle_setkey(char *word[], char *word_eol[], void *userdata) {
+    const char *nick;
+    const char *key;
+    
+    // Check syntax
+    if (*word[2] == '\0') {
+        xchat_printf(ph, "%s\n", usage_setkey);
+        return XCHAT_EAT_XCHAT;
+    }
+    
+    if (*word[3] == '\0') {
+        // /setkey password
+        nick = xchat_get_info(ph, "channel");
+        key = word_eol[2];
+    } else {
+        // /setkey #channel password
+        nick = word[2];
+        key = word_eol[3];
+    }
+    
+    // Set password
+    if (keystore_store_key(nick, key)) {
+        xchat_printf(ph, "Stored key for %s\n", nick);
+    } else {
+        xchat_printf(ph, "\00305Failed to store key in blow.ini\n", nick, key);
+    }
+    
+    return XCHAT_EAT_XCHAT;
+}
+
+/**
+ * Command handler for /delkey
+ */
+static int handle_delkey(char *word[], char *word_eol[], void *userdata) {
+    const char *nick;
+    
+    // Check syntax
+    if (*word[2] == '\0' || *word[3] != '\0') {
+        xchat_printf(ph, "%s\n", usage_delkey);
+        return XCHAT_EAT_XCHAT;
+    }
+    
+    nick = word_eol[2];
+    
+    // Delete the given nick from the key store
+    if (keystore_delete_nick(nick)) {
+        xchat_printf(ph, "Deleted key for %s\n", nick);
+    } else {
+        xchat_printf(ph, "\00305Failed to delete key in blow.ini!\n", nick);
+    }
+    
+    return XCHAT_EAT_XCHAT;
+}
+
+/**
+ * Returns the plugin name version information.
+ */
+void xchat_plugin_get_info(const char **name, const char **desc,
+                                  const char **version, void **reserved) {
+    *name = plugin_name;
+    *desc = plugin_desc;
+    *version = plugin_version;
+}
+
+/**
+ * Plugin entry point.
+ */
+int xchat_plugin_init(xchat_plugin *plugin_handle,
+                             const char **name,
+                             const char **desc,
+                             const char **version,
+                             char *arg) {
+    ph = plugin_handle;
+    
+    /* Send our info to XChat */
+    *name = plugin_name;
+    *desc = plugin_desc;
+    *version = plugin_version;
+    
+    /* Register commands */
+    xchat_hook_command(ph, "SETKEY", XCHAT_PRI_NORM, handle_setkey, usage_setkey, NULL);
+    xchat_hook_command(ph, "DELKEY", XCHAT_PRI_NORM, handle_delkey, usage_delkey, NULL);
+    
+    /* Add handlers */
+    xchat_hook_command(ph, "", XCHAT_PRI_NORM, handle_outgoing, NULL, NULL);
+    xchat_hook_server(ph, "NOTICE", XCHAT_PRI_NORM, handle_incoming, NULL);
+    xchat_hook_server(ph, "PRIVMSG", XCHAT_PRI_NORM, handle_incoming, NULL);
+    //xchat_hook_server(ph, "RAW LINE", XCHAT_PRI_NORM, handle_debug, NULL);
+    xchat_hook_server(ph, "TOPIC", XCHAT_PRI_NORM, handle_incoming, NULL);
+    xchat_hook_server(ph, "332", XCHAT_PRI_NORM, handle_incoming, NULL);
+    
+    xchat_printf (ph, "%s plugin loaded\n", plugin_name);
+    /* Return success */
+    return 1;
+}
+
+int xchat_plugin_deinit(void) {
+    xchat_printf (ph, "%s plugin unloaded\n", plugin_name);
+    return 1;
+}
diff --git a/plugins/makefile.mak b/plugins/makefile.mak
index b08917ab..a308cae3 100644
--- a/plugins/makefile.mak
+++ b/plugins/makefile.mak
@@ -5,6 +5,8 @@ all:
 #	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\doat
 	@-$(MAKE) /nologo /s /f makefile.mak $@
+	@cd ..\fishlim
+	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\lua
 	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\mpcinfo
@@ -29,6 +31,8 @@ clean:
 #	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\doat
 	@-$(MAKE) /nologo /s /f makefile.mak clean $@
+	@cd ..\fishlim
+	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\lua
 	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\mpcinfo